Thread: Temp sender GM: AC-257M
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Old 06-25-2016, 04:56 AM
SS69chevelle SS69chevelle is offline
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Default Re: Temp sender GM: AC-257M
Not sure if it is the same but I have an original 1969 sending unit with AC-248MX and it is a single post connector, pretty sure it is for lights vs gauges. hope that helps, take care Andy
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